Simultaneous Nadir Overpasses (SNOs) between GOES-15 and FY3D
TLE Epoch: 2023 1 30.  Predictions up to the next  14.0 days:

     Date     Time(GOES-15)   GOES-15 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 01/30/2023   22:25:50   (  -0.04,-128.25) (   0.26,-127.04)  138.76                80
 02/01/2023   10:48:15   (   0.04,-128.29) (   0.99,-132.43)  472.89                80
 02/02/2023   10:32:34   (   0.05,-128.29) (   0.00,-127.99)   33.92                80
 02/04/2023   22:36:47   (  -0.05,-128.26) (  -0.21,-128.98)   81.71                80
 02/05/2023   22:15:47   (  -0.05,-128.26) (   0.79,-124.54)  424.48                80
 02/07/2023   10:38:11   (   0.06,-128.28) (   0.46,-129.93)  188.21                80
 02/08/2023   10:22:30   (   0.06,-128.28) (  -0.55,-125.48)  318.20                80
 02/09/2023   22:45:04   (  -0.06,-128.25) (  -0.63,-130.92)  303.81                80
 02/10/2023   22:24:02   (  -0.06,-128.25) (   0.32,-126.47)  202.04                80
 02/12/2023   10:46:28   (   0.06,-128.26) (   0.87,-131.87)  412.12                80